Source: Noto Sans Symbols2

U+2BD1 Uncertainty Sign

U+2BD1 was added to Unicode in version 7.0 (2014). It belongs to the block U+2B00 to U+2BFF Miscellaneous Symbols and Arrows in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as query.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. In text U+2BD1 behaves as Alphabetic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

Representations

System	Representation
Nº	11217
UTF-8	E2 AF 91
UTF-16	2B D1
UTF-32	00 00 2B D1
URL-Quoted	%E2%AF%91
HTML hex reference	⯑
Wrong windows-1252 Mojibake	â¯‘
alias	query

Elsewhere

Complete Record

Property	Value
Age	7.0 (2014)
Unicode Name	UNCERTAINTY SIGN
Unicode 1 Name	—
Block	Miscellaneous Mathematical Symbols-A
General Category	Other Symbol
Script	Common
Bidirectional Category	Other Neutral
Combining Class	Not Reordered
Decomposition Type	None
Decomposition Mapping	Uncertainty Sign
Lowercase	✘
Simple Lowercase Mapping	Uncertainty Sign
Lowercase Mapping	Uncertainty Sign
Uppercase	✘
Simple Uppercase Mapping	Uncertainty Sign
Uppercase Mapping	Uncertainty Sign
Simple Titlecase Mapping	Uncertainty Sign
Titlecase Mapping	Uncertainty Sign
Case Folding	Uncertainty Sign
ASCII Hex Digit	✘
Alphabetic	✘
Bidi Control	✘
Bidi Mirrored	✘
Composition Exclusion	✘
Case Ignorable	✘
Changes When Casefolded	✘
Changes When Casemapped	✘
Changes When NFKC Casefolded	✘
Changes When Lowercased	✘
Changes When Titlecased	✘
Changes When Uppercased	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✘
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✘
Extended Pictographic	✘
FC NFKC Closure	Uncertainty Sign
Grapheme Cluster Break	Any
Grapheme Base	✔
Grapheme Extend	✘
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✘
ID Start	✘
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✘
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Other
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	Uncertainty Sign
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Other Alphabetic	✘
Other Default Ignorable Code Point	✘
Other Grapheme Extend	✘
Other ID Continue	✘
Other ID Start	✘
Other Lowercase	✘
Other Math	✘
Other Uppercase	✘
Prepended Concatenation Mark	✘
Pattern Syntax	✔
Pattern White Space	✘
Quotation Mark	✘
Regional Indicator	✘
Radical	✘
Sentence Break	Other
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✘
Variation Selector	✘
Word Break	Other
White Space	✘
XID Continue	✘
XID Start	✘
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	Uncertainty Sign
Bidi Paired Bracket Type	None
East Asian Width	Neutral
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Non Joining
Line Break	Alphabetic
Numeric Type	None
Numeric Value	not a number
Simple Case Folding	Uncertainty Sign
Script Extension
Vertical Orientation	U